Electrolyte for electrolytic condensers



Oct. 30, 1923.

E` J. HAVERSTICK ELECTROLYTE FOR ELECTROLYTXC CONDENSERS Filed March 23 1921 INVENTOR Earl J Ha verszic/f.

./7 Salut/on of dn AUI/minatal dP/msphate and d F lubride RRR WITNESSES:

i ATTORNEY Patented Oct. 30, 1923.

. EARL J. HVERSTICK, 0F OAKI'IONT,

PENNSYLVANIA, ASSIGNOR T0 WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION 0F PENNSYLVANIA.

ELECTROLYTE FOR ELECTROLYTIC CONDENSERS.

Application led March 23, 1921. Serial No. 454,892.

To (/,ZZ whom 'it 'may concern Be it known that. I, EARL J. HAVERSTICK, a citizen of the United States, and a resident of Oakmont, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Electrolyte for Electrolytie Condensers, of which the following is a specification.

This invention relates to electrolytic cells, more particularly to cells adapted for use as electrolytic condensers, lightning arresters, rectifiers and the like.

Cells for the above-mentioned purposes comprise, generally, a plurality of filmforming electrodes, such as aluminum, immersed in a solution of a suitable electrolyte. The electrolyte should be stable and have a .low power factor and shouldnot.

form precipitates during the operation of the cell.

My invention is designed to provide a novel electrolyte which is particularly advantageous for use in that -it does not form precipitates, gives a low power factor and is stable.

I have found that an electrolyte comprising a weak solution of an aluminate, a phosphate and a fluoride gives excellent results. A specific composition which I have found to be satisfactory is as follows:

Sod. aluminate 2.5 gms.,

Tri-sodium phosphate 11.5 gms.,

Sodium fluoride 3 gms.,

Distilled water 1200 cc.

In the accompanying drawing constituting a part hereof, the single .figure thereof is a diagrammatic view of an electrolytic cell containing an electrolyte made .in accordance with my invention and having a low power factor or internal loss of energy in the cell.

An electrolyte of this character gives a power factor between 3% and 4% even after operating continuously for'long periods of time. The power factor is the ratio ofthe dissipation of energy in the cell to the energy supplied t0 the system, generally appearing as heat and representing a loss of power. The electrodes are always clean and no precipitates are formed in operation.

I claim as my invention:

1. An electrolyte for electrolytic condensers, lightning arresters, rectiliers and the like which comprisesva solution of nate, a phosphate and a fluoride.

2. An electrolyte for electrolytic condensf ers, lightning arresters, rectifiers and the like which comprises a' solution of Sodium aluminate, tri-sodium phosphate and sodium fluoride.

3. An electrolyte for electrolytic condensers, lightning ari-esters, rectiliers and the like which comprises a solution of sodium aluminate25 grams, tri-sodium phosphate 11.5 grams, sodium fluoride 3 grams, in 1200 cc. water.

In testimony whereof, I have hereunto subscribed my name this 15th day of March,

EARL J. HAVERSTICK. 

